1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
use std::{
error, fmt,
num::{ParseFloatError, ParseIntError},
rc::Rc,
};
#[derive(Debug)]
pub enum Error {
// Number
InvalidFloatLiteral(ParseFloatError),
InvalidIntegerLiteral(ParseIntError),
// String
UnclosedString(Rc<str>),
UnexpectedEscapeChar(char),
// Par
UnexpectedRightPar,
UnclosedLeftPar,
UnexpectedEof,
RecursionLimit,
}
impl From<ParseFloatError> for Error {
fn from(value: ParseFloatError) -> Self {
Self::InvalidFloatLiteral(value)
}
}
impl From<ParseIntError> for Error {
fn from(value: ParseIntError) -> Self {
Self::InvalidIntegerLiteral(value)
}
}
impl fmt::Display for Error {
fn fmt(&self, _f: &mut fmt::Formatter) -> fmt::Result {
todo!()
}
}
impl error::Error for Error {}
|
